[  528.295193] bond0: (slave eth0): making interface the new active one
[  528.295283] bond0: (slave eth0): Enslaving as an active interface with an up link
[  532.494090] bond0: (slave eth0): Releasing backup interface
[  532.573094] bond0: (slave eth0): Enslaving as an active interface with an up link
[  536.712847] bond0: (slave eth0): Releasing backup interface
[  536.753719] bond0 (unregistering): Released all slaves